amazon web services - S3 hosting over CloudFront is serving application/octet-stream instead of HTML -

issue: s3 static hosting url serving right html page none of other url working fine. instead, download index.html file on web browser. request here because i've tried solutions found in research.

domain: http://amber.fidento.com (via cloudflare)

s3 static web hosting url: http://amber.fidento.com.s3-website-us-east-1.amazonaws.com

cloudfront distribution url: d35jbnkk7p2igl.cloudfront.net

using curl -i on each of above urls, application/octet-stream on output of 1st , 3rd url , text/html on 2nd.

additional info:

1. cors configuration:

   <allowedorigin>*</allowedorigin> <allowedmethod>get</allowedmethod> <maxageseconds>3000</maxageseconds> <allowedheader>authorization</allowedheader> 

2. bucket policy:

   {     "version": "2012-10-17",     "statement": [         {             "sid": "publicreadgetobject",             "effect": "allow",             "principal": "*",             "action": "s3:getobject",             "resource": "arn:aws:s3:::amber.fidento.com/*"         }     ] } 

3. index.html has metadata set text/html